# Amsl vs HEar Studie

The clearest difference is update cadence: HEar Studie at every 4 days against Amsl's every 2 months. Amsl's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Amsl ships an update every 2 months, HEar Studie every 4 days. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Amsl | HEar Studie |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 33 MB | 11 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Karlsruhe Institute of Technology](https://appshunter.io/developer/526682306) | [Karlsruher Institut fuer Technologie (KA)](https://appshunter.io/developer/1650206749) |

## What reviewers say

### Amsl

[App page](https://appshunter.io/ios/app/amsl/id6443829618)

**Features:** macOS Compatibility

**In-app purchases:** none


### HEar Studie

[App page](https://appshunter.io/ios/app/hear-studie/id6740092996)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Amsl free?

Amsl is free to download, with no in-app purchases.

### Is HEar Studie free?

HEar Studie is free to download, with no in-app purchases.

### Do Amsl or HEar Studie have ads?

Neither Amsl nor HEar Studie shows ads.

### Which is updated more often, Amsl or HEar Studie?

Amsl ships an update every 2 months, and HEar Studie every 4 days. Most recently, Amsl was updated on October 16, 2026 and HEar Studie on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*